19213818

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{787}}^1$

素因数の和:1118

約数の個数: 32

約数和(自身を含む): 41568576

約数和(自身を除く): 22354758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 313, 626, 787, 939, 1574, 1878, 2361, 4069, 4722, 8138, 10231, 12207, 20462, 24414, 30693, 61386, 246331, 492662, 738993, 1477986, 3202303, 6404606, 9606909, 19213818]

約数ペア:

[(1, 19213818), (2, 9606909), (3, 6404606), (6, 3202303), (13, 1477986), (26, 738993), (39, 492662), (78, 246331), (313, 61386), (626, 30693), (787, 24414), (939, 20462), (1574, 12207), (1878, 10231), (2361, 8138), (4069, 4722)]